13949155 has 16 divisors (see below), whose sum is σ = 19056384. Its totient is φ = 9702880.

The previous prime is 13949153. The next prime is 13949161. The reversal of 13949155 is 55194931.

It is a happy number.

It is not a de Polignac number, because 13949155 - 2¹ = 13949153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13949153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4249 + ... + 6778.

It is an arithmetic number, because the mean of its divisors is an integer number (1191024).

Almost surely, 2^13949155 is an apocalyptic number.

13949155 is a deficient number, since it is larger than the sum of its proper divisors (5107229).

13949155 is a wasteful number, since it uses less digits than its factorization.

13949155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11066.

The product of its digits is 24300, while the sum is 37.

The square root of 13949155 is about 3734.8567576281. The cubic root of 13949155 is about 240.7221018121.

It can be divided in two parts, 139 and 49155, that added together give a palindrome (49294).

The spelling of 13949155 in words is "thirteen million, nine hundred forty-nine thousand, one hundred fifty-five".